Abstract: A system includes a firebox connected to the cook chamber, an exchange plate opening between the cook chamber and the firebox for fluid flow between the firebox and the cook chamber, a heat deflector connected to inside the cook chamber above the exchange plate opening, a smoke collector connected to the cook chamber opposite the firebox, for accumulation of fluid flow from the cook chamber, a smokestack connected to the smoke collector for expulsion of fluid flow from the smoke collector, and a cooking grate located inside the cook chamber extending from below the heat deflector to a base of the smoke collector. The system operates as a barbecue pit cooker and may be optimized for cooking meats.

Abstract: A three-dimensional (3D) microstructure providing additional current-carrying pathways for sensors has a shape of a truss structure. A graphene-based sensor can include a detection surface and a graphene truss structure on the detection surface. The graphene truss structure can be aligned in a direction of connectivity across electrodes of the graphene-based sensor and provided in plurality. The graphene truss structure can be formed of graphene flakes and 3D printed on the detection surface. The 3D printing can be accomplished using aerosol jet printing without post-print processing.

Abstract: Disclosed are sensors that include a carbon nanotube channel and a non-fouling polymer layer, where the non-fouling polymer layer and the carbon nanotube channel do not directly contact each other and are separated by a dielectric layer. The disclosed sensors may be used, e.g., as biosensors for the accurate and sensitive detection of analytes within a sample. Also disclosed are methods of making and using the sensors.

Abstract: A method of measuring thickness of a material generally includes applying an oscillating signal to a first electrode at a fixed frequency, passing the signal through the material to a second electrode, and measuring the magnitude of the signal reflected back to the first electrode. The thickness of the material is determined based on the measured magnitude of the reflected signal by: 1) comparing the determined magnitude to a predetermined baseline to establish a difference; and 2) identifying the thickness based on the difference. Related apparatuses are also disclosed. The material may be a vehicle tire.

Abstract: Disclosed are sensors that include a carbon nanotube channel and a non-fouling polymer layer, where the non-fouling polymer layer and the carbon nanotube channel do not directly contact each other and are separated by a dielectric layer. The disclosed sensors may be used, e.g., as biosensors for the accurate and sensitive detection of analytes within a sample. Also disclosed are methods of making and using the sensors.

Abstract: A method of measuring thickness of a material generally includes applying an oscillating signal to a first electrode at a fixed frequency, passing the signal through the material to a second electrode, and measuring the magnitude of the signal reflected back to the first electrode. The thickness of the material is determined based on the measured magnitude of the reflected signal by: 1) comparing the determined magnitude to a predetermined baseline to establish a difference; and 2) identifying the thickness based on the difference. Related apparatuses are also disclosed. The material may be a vehicle tire.